39 lines
1.5 KiB
Python
39 lines
1.5 KiB
Python
from django.contrib.contenttypes.models import ContentType
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from openslides.utils.autoupdate import inform_changed_data
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from .models import Item
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def listen_to_related_object_post_save(sender, instance, created, **kwargs):
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"""
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Receiver function to create agenda items. It is connected to the signal
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django.db.models.signals.post_save during app loading.
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Do not run caching and autoupdate if the instance as an attribute
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skip_autoupdate (regardless of its truthy or falsy conent).
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"""
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if hasattr(instance, 'get_agenda_title'):
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if created:
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# If the object is created, the related_object has to be sent again.
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Item.objects.create(content_object=instance)
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if not hasattr(instance, 'skip_autoupdate'):
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inform_changed_data(instance)
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elif not hasattr(instance, 'skip_autoupdate'):
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# If the object has changed, then also the agenda item has to be sent.
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inform_changed_data(instance.agenda_item)
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def listen_to_related_object_post_delete(sender, instance, **kwargs):
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"""
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Receiver function to delete agenda items. It is connected to the signal
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django.db.models.signals.post_delete during app loading.
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"""
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if hasattr(instance, 'get_agenda_title'):
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content_type = ContentType.objects.get_for_model(instance)
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try:
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Item.objects.get(object_id=instance.pk, content_type=content_type).delete()
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except Item.DoesNotExist:
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# Item does not exist so we do not have to delete it.
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pass
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